UHF band 2-channel wireless microphone system, with 2 transmitters. Transmitters - Model: RZT-80M - Brand: REXER - Type: Wireless Microphone System - Number of Transmitters (Belt Packs): 2 - Number of Headset Microphones: 2 - Frequency Band: UHF B band, 30 selectable frequencies Receiver - Model: RZR-820 - Number of Channels: 2 - Frequency Band: UHF B band, 30 selectable frequencies Signal Distributor - Model: RZD-840 (Receives with 2 antennas, can supply signal to up to 4 receivers) Thank you for viewing. Although transmitting and receiving, no sound is produced, so this is being sold as a junk item. Please consider this for parts or repair.